Eaton XV300 - Serial Interfaces; COM1 RS-232 Communication

5. External connections
5.5 Serial interfaces for communication with PLCs or devices
5.5 Serial interfaces for communication with PLCs or devices
5.5.1 COM1 RS-232
The RS232- interface is not electrically isolated.
CAUTION
NON-GALVANICALLY-ISOLATED INTERFACES
The XV300 may be damaged by potential differences.
The GND terminals of all bus modules must be connected.
Do not connect the connector to the XV300 or disconnect it without
first de-energizing the system.
SUB-D plug PIN signal Meaning
9 pole
1
2
3
4
5
6
9
8
7
1
DCD
Data Carrier Detect
2
RXD
Receive Data
3
TXD
Transmit Data
4
DTR
Data Terminal Ready
5
GND
Signal Ground
6
DSR
Data Set Ready
7
RTS
Request to Send
8
CTS
Clear To Send
9
RI
Ring Indicator
Plug housings
GND
Functional earthing
Table 14: Pin assignment COM1 RS-232, not galvanically isolated, SUB-D plug 9-pole, UNC nuts for interlocking
5.5.1.1 Wiring
l Shielded cables must be used.
l The maximal baud rate depends on the cable length
Lead Length Max. baud rate

2.5 m
115200 Bit/s
5 meters
57600 Bit/s
10 metres
38400 Bit/s
15 m
19200 Bit/s
30 m
9600 Bit/s
Table 15: RS-232 cable length based on baud rate
When preparing connections, ensure that the cable shield has a low
impedance connection with the connector housing.
XV30004/19 MN048017ENwww.eaton.eu
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